Deoxidizer high-efficiency granulator

Abstract

The utility model discloses a deoxidizer high -efficient granulator relates to deoxidizer production equipment technical field, and the low efficiency of existing deoxidizer granulator in prior art, the poor granularity uniformity, the cumbersome and high maintenance cost problem of dismounting, the present scheme is presented, including heating cylinder, the inside of heating cylinder is provided with spiral conveying roller, and one end of spiral conveying roller is rotatably connected with the fixed frame, one end of heating cylinder is connected with the forming mechanism, and the forming mechanism includes the forming head. The utility model high -efficient granulation precision is high, and the production stability is strong, and through synchronous drive and uniform heating design, solve the low efficiency of traditional equipment, the problem of poor granularity, heating cylinder electric heating wire cooperation heat preservation layer, and raw material melts fully without caking, and the blockage rate reduces, and spiral conveying roller and rotating rod pass through hexagonal structure synchronous drive, and the rotational speed matching error is small, and the qualified rate improves, and the single shift output improves. Servo motor speed regulation adapts to different raw materials, and the granulation efficiency is improved, and the single shift output is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of deoxidizer production equipment, and in particular to a high-efficiency deoxidizer granulator. Background Technology

[0002] The high-efficiency deoxidizer granulator is a key piece of equipment in a deoxidizer production line. Its core function is to heat and melt deoxidizer raw materials (such as mixtures of iron powder, activated carbon, and binders), then extrude them through a screw conveyor to a forming head, where a cutting component cuts them into uniform granules, ensuring consistent particle size and stable forming. This equipment must meet the requirements of uniform heating, continuous conveying, precise cutting, and convenient assembly and disassembly. It is widely used in deoxidizer manufacturing enterprises and directly affects the product quality, production efficiency, and production costs of deoxidizers.

[0003] However, existing high-efficiency deoxidizer granulators have significant shortcomings in practical use.

[0004] On the one hand, the granulation efficiency is low and the particle uniformity is poor: the heating cylinder of traditional equipment is uneven, resulting in insufficient melting of raw materials, which easily causes agglomeration and blockage during screw conveying.

[0005] On the other hand, disassembly and assembly are cumbersome and maintenance costs are high: the forming head and heating cylinder are connected by flanges with multiple bolts, and disassembly and cleaning require unscrewing each bolt; the scraper is welded and fixed to the rotating rod, and the rotating rod needs to be replaced as a whole after wear. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a high-efficiency deoxidizer granulator, which overcomes the deficiencies of existing technologies and effectively solves the problems of low efficiency, poor particle uniformity, cumbersome disassembly and assembly, and high maintenance costs of existing deoxidizer granulators.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency deoxidizer granulator includes a heating cylinder, inside which a spiral conveying roller is provided, and one end of the spiral conveying roller is rotatably connected to a fixed frame. One end of the heating cylinder is connected to a forming mechanism, which includes a forming head, a protective shell connected to one side of the forming head, a feeding pipe inserted and fixed to the bottom of the arc-shaped outer wall of the protective shell, and a cutting assembly disposed between the forming head and the protective shell. The cutting assembly includes a rotating rod and scrapers evenly distributed at one end of the rotating rod.

[0008] Preferably, a feed hopper is inserted and fixed at one end of the top of the outer wall of the heating cylinder, and supports are fixed on both sides of the bottom of the outer wall of the heating cylinder.

[0009] The heating cylinder is made of 304 stainless steel, with an inner diameter of 150mm and a length of 1000mm. The outer wall is wrapped with electric heating wire and covered with an insulation layer, and the heating temperature difference is ≤5℃. The feed hopper is a stainless steel conical structure with an upper diameter of 300mm and a lower diameter of 150mm, and is welded and fixed to the heating cylinder. The support is made of Q355 steel and welded, with a height of 800mm. The bottom can be equipped with leveling casters.

[0010] Preferably, a servo motor is installed on the outer wall of one end of the heating cylinder, and the output shaft of the servo motor is connected and fixed to the other end of the spiral conveying roller, and the spiral blades of the spiral conveying roller form a sliding fit with the inner wall of the heating cylinder.

[0011] The servo motor model is 110ST-M06030, with a rated power of 600W, adjustable speed from 0-300r / min, and positioning accuracy of 0.1°; the spiral conveyor roller is forged from 42CrMo material, with a spiral blade thickness of 15mm, a clearance of 0.1mm between it and the inner wall of the heating cylinder, and a chrome-plated surface with a plating thickness of 5μm.

[0012] Preferably, symmetrically distributed first mounting blocks are fixed on both sides of the annular outer wall of the forming head, and second mounting blocks are fixed on both sides of the protective shell and the arc-shaped outer wall of the heating cylinder near the forming head. The adjacent first mounting blocks and second mounting blocks are fastened together by bolts and nuts.

[0013] The forming head is made of Cr12MoV mold steel with an inner diameter of 150mm. It has equidistant forming holes on its surface with a diameter of 3mm and a spacing of 5mm. It is hardened to a hardness of HRC55-58. The first and second mounting blocks are both made of Q235 steel, with two sets of each. The bolts are M12 high-strength bolts.

[0014] Preferably, one end of the spiral conveying roller is provided with a hexagonal groove, and a hexagonal column is fixed at the end of the rotating rod near the spiral conveying roller, with the hexagonal column and the hexagonal groove forming an interlocking fit.

[0015] The hexagonal groove is 30×30mm in size and 50mm in depth, with the inner wall milled flat; the hexagonal column is made of 42CrMo material, with dimensions of 29.95×29.95mm and a length of 50mm, and is welded and fixed to the rotating rod with a clearance of 0.05mm to ensure synchronous torque transmission.

[0016] Preferably, one end of the rotating rod has equally spaced insertion holes, and the insertion holes are connected to the scraper. The scraper and the insertion holes are fastened together by bolts.

[0017] The rotating rod is made of 304 stainless steel, with a diameter of 50mm and a length of 200mm; the insertion hole diameter is 12mm and the spacing is 40mm; the scraper is made of high-speed steel W18Cr4V, with a precision-ground cutting edge, a sharpness of ≤0.01mm, a thickness of 5mm, and a gap of 0.03mm between it and the end face of the forming head, and is fastened with M8 bolts.

[0018] The beneficial effects of this utility model are as follows: It features high-efficiency granulation with high precision and strong production stability. Through synchronous drive and uniform heating design, it solves the problems of low efficiency and poor particle quality of traditional equipment. The heating cylinder electric heating wire and insulation layer ensure that the raw materials are fully melted without agglomeration, reducing the blockage rate. The spiral conveyor roller and rotating rod are synchronously driven through a hexagonal structure, with small speed matching error and improved pass rate. The servo motor speed adjustment is adapted to different raw materials, improving granulation efficiency and single-shift output. With quick disassembly and easy maintenance, and low operating costs, this product improves upon the traditional equipment's cumbersome disassembly and high costs by relying on modular connections and replaceable scraper design. The first and second mounting blocks are symmetrically bolted together, shortening the disassembly time of the forming head and improving cleaning efficiency. The scraper is fixed to the rotating rod with plug bolts, so only the scraper needs to be replaced after wear. The protective shell is firmly connected to the forming head, reducing the roughness of the particle cut and extending the equipment maintenance cycle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency deoxidizer granulator proposed in this utility model; Figure 2 This is a cross-sectional schematic diagram of the internal structure of the heating cylinder of a high-efficiency deoxidizer granulator proposed in this utility model; Figure 3 This is a schematic diagram of the molding mechanism of a high-efficiency deoxidizer granulator proposed in this utility model; Figure 4 This is a schematic diagram of the cutting component structure of a high-efficiency deoxidizer granulator proposed in this utility model.

[0020] In the diagram: 1. Heating cylinder; 2. Feed hopper; 3. Support frame; 4. Screw conveyor roller; 5. Servo motor; 6. Fixing frame; 7. Forming mechanism; 8. Forming head; 9. First mounting block; 10. Rotating rod; 11. Hexagonal column; 12. Scraper; 13. Protective shell; 14. Second mounting block; 15. Feed pipe; 16. Cutting assembly. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0022] Reference Figure 1-4 A high-efficiency deoxidizer granulator includes a heating cylinder 1, a spiral conveying roller 4 is provided inside the heating cylinder 1, a fixed frame 6 is rotatably connected to one end of the spiral conveying roller 4, a forming mechanism 7 is connected to one end of the heating cylinder 1, the forming mechanism 7 includes a forming head 8, a protective shell 13 connected to one side of the forming head 8, a feeding pipe 15 inserted and fixed to the bottom of the arc-shaped outer wall of the protective shell 13, and a cutting assembly 16 disposed between the forming head 8 and the protective shell 13. The cutting assembly 16 includes a rotating rod 10 and scrapers 12 evenly distributed at one end of the rotating rod 10.

[0023] A feed hopper 2 is fixedly inserted into the top of the outer wall of the heating cylinder 1, and supports 3 are fixed on both sides of the bottom of the outer wall of the heating cylinder 1. The heating cylinder 1 is made of 304 stainless steel, with an inner diameter of 150mm and a length of 1000mm. The outer wall is wrapped with electric heating wire and covered with an insulation layer, and the heating temperature difference is ≤5℃. The feed hopper 2 is a stainless steel conical structure with an upper diameter of 300mm and a lower diameter of 150mm, and is welded and fixed to the heating cylinder. The supports 3 are made of Q355 steel, welded and formed, with a height of 800mm, and leveling casters can be installed at the bottom. A servo motor 5 is installed on one end of the outer wall of the heating cylinder 1. The output shaft of the servo motor 5 is connected and fixed to the other end of the spiral conveyor roller 4. The spiral blades of the spiral conveyor roller 4 form a sliding fit with the inner wall of the heating cylinder 1. The servo motor 5 is model 110ST-M06030, with a rated power of 600W, adjustable speed from 0-300r / min, and positioning accuracy of 0.1°. The spiral conveyor roller 4 is forged from 42CrMo material, with a spiral blade thickness of 15mm, a clearance of 0.1mm between it and the inner wall of the heating cylinder, and a chrome-plated surface with a plating thickness of 5μm. Symmetrically distributed first mounting blocks 9 are fixed on both sides of the annular outer wall of the forming head 8. Second mounting blocks 14 are fixed on both sides of the arc-shaped outer wall of the protective shell 1 and the heating cylinder 1 near the forming head 8. The adjacent first mounting blocks 9 and second mounting blocks 14 are fastened together by bolts and nuts.

[0024] The forming head 8 is made of Cr12MoV mold steel with an inner diameter of 150mm. It has equidistant forming holes on its surface, each 3mm in diameter and 5mm apart, and is hardened to a hardness of HRC55-58. The first mounting block 9 and the second mounting block 14 are both made of Q235 steel, with two sets of each, and M12 high-strength bolts are used. One end of the spiral conveyor roller 4 has a hexagonal groove. A hexagonal column 11 is fixed to the end of the rotating rod 10 near the spiral conveyor roller 4, forming an interlocking fit with the hexagonal groove. The hexagonal groove is 30×30mm in size and 50mm in depth, with a milled inner wall. The hexagonal column 11 is made of 42CrMo steel, 29.95×29.95mm in size, and 50mm in length. It is welded to the rotating rod 10 with a 0.05mm clearance to ensure synchronous torque transmission. The rotating rod 10 has evenly spaced insertion holes at one end of its wall. These holes engage with the scraper 12, and the scraper 12 is secured to the insertion holes with bolts. The rotating rod 10 is made of 304 stainless steel, with a diameter of 50mm and a length of 200mm. The insertion holes are 12mm in diameter and spaced 40mm apart. The scraper 12 is made of high-speed steel W18Cr4V, with a precision-ground cutting edge that has a sharpness of ≤0.01mm and a thickness of 5mm. The scraper 12 has a 0.03mm gap from the end face of the forming head and is secured with M8 bolts.

[0025] Heating cylinder and support assembly: Heating cylinder 1 is made of seamless 304 stainless steel tubing, with the inner wall honed to a roughness Ra≤0.8μm. An electric heating wire is wound around the outer wall, with a power of 500W per meter. Temperature is controlled by a temperature controller with an accuracy of ±1℃. The outer surface is wrapped with rock wool insulation and covered with a stainless steel protective shell. The feed hopper 2 is welded to the top of the heating cylinder, and the weld joint is polished. Support 3 is welded from Q355 angle steel, with locking leveling casters installed at the bottom. Heating cylinder 1 is fixed to the top of support 3 with bolts. After leveling, the casters are locked to ensure that heating cylinder 1 is level, with a levelness error ≤0.1mm / m.

[0026] Assembly of the conveying and drive mechanism: The spiral conveyor roller 4 is forged from 42CrMo round steel, and the spiral blades are machined on a lathe. The blades are welded and fixed to the rod body. After welding, flaw detection is performed and no defects are found. The surface is chrome-plated. The fixing frame 6 is a welded frame of Q235 steel. It is rotatably connected to one end of the spiral conveyor roller 4 through a bearing seat (model 6210). The fixing frame 6 is bolted to one end inside the heating cylinder 1. The servo motor 5 is fixed to the outer wall of the other end of the heating cylinder 1 through a motor bracket. The output shaft is connected to the other end of the spiral conveyor roller 4 through a coupling. The coaxiality error is ≤0.05mm, completing the assembly of the drive mechanism.

[0027] Assembly of the forming mechanism and cutting components: The forming head 8 is machined from Cr12MoV mold steel. The forming holes on the surface are machined by CNC drilling machine with an accuracy of ±0.02mm. After quenching, the end face is precision ground. The first mounting block 9 is welded to both sides of the forming head 8. The second mounting block 14 is welded to one end of the heating cylinder 1 near the forming head 8 and both sides of the protective shell 13, respectively. The forming head 8 is fastened to the heating cylinder 1 with bolts. The sealing gasket is made of silicone material with a temperature resistance of 200℃ to ensure a tight seal at the connection. A hexagonal column 11 is welded to one end of the rotating rod 10 and inserted into the hexagonal groove of the spiral conveying roller 4. The scraper 12 is inserted into the insertion hole of the rotating rod 10 and fastened with bolts. The gap between the scraper 12 and the end face of the forming head 8 is adjusted to 0.03mm. The protective shell 13 is fastened to the second mounting block 14 with bolts. The feed pipe 15 is inserted into the bottom of the protective shell 13 and welded in place.

[0028] Overall Machine Debugging and Performance Testing: Heating System Debugging: Set the heating temperature to 180℃. After 30 minutes, check the temperature at various points on the inner wall of heating cylinder 1. The temperature difference should be ≤5℃, and the temperature controller should respond sensitively. Drive System Debugging: Start the servo motor 5. The screw conveyor roller 4 and the rotating rod 10 rotate synchronously. The speed is adjustable from 0-300 r / min, with no jamming. Granulation Performance Test: Add deoxidizer mixed raw materials, 60% iron powder, 20% activated carbon, and 20% binder. Set the speed to 150 r / min. Continuously granulate for 1 hour. The particle diameter is 3mm±0.1mm, the length is 5mm±0.1mm, the pass rate is 99.5%, and the output is 55kg / h. Disassembly and Assembly Test: Disassembling the forming head 8 takes 5 minutes, and replacing the scraper 12 takes 3 minutes, which meets the design requirements. After 8 hours of continuous operation, the equipment has no faults, the forming holes are not blocked, and the particle quality is stable.

[0029] Working principle Equipment debugging and raw material preparation: Select a forming head with an appropriate forming hole according to the deoxidizer granule specifications. Fix it to one end of the heating cylinder using bolts from the first and second mounting blocks. Install and tighten the protective shell. Install the scraper onto the rotating rod and adjust the gap between it and the forming head end face to 0.03mm. Set the heating cylinder temperature to 180℃ using the temperature controller and start the heating system for preheating for 30 minutes. Set the servo motor speed to 150r / min using the controller. Prepare the deoxidizer mixture raw materials, ensuring they are dry and preventing clumping.

[0030] Heating and Melting with a Screw Conveying System: The prepared raw materials are poured into the feed hopper and enter the heating cylinder along the hopper. Electric heating wires inside the heating cylinder uniformly heat the raw materials, while an insulation layer reduces heat loss, ensuring the raw materials are fully melted at 180℃ without localized overheating. The servo motor is started, driving the screw conveyor roller to rotate. The screw blades continuously push the molten raw materials towards the forming head, with a stable pushing pressure of 0.8 MPa, ensuring the raw materials can be smoothly extruded into the forming holes of the forming head. A fixing frame supports one end of the screw conveyor roller to ensure no radial runout during conveying.

[0031] Extrusion molding and simultaneous cutting: Molten raw material is pushed by a screw conveyor roller and extruded into a cylindrical strip shape through the forming hole of the forming head. The strip extends from one side of the forming head. Simultaneously, the hexagonal groove at one end of the screw conveyor roller drives the hexagonal column of the rotating rod to rotate synchronously, and the rotating rod drives the scraper to rotate at high speed. The scraper blade precisely matches the end face of the forming head, cutting the extended strip into particles of a set length. During the cutting process, a protective shell prevents particles from splashing, ensuring operational safety. The cut particles fall into the feed pipe at the bottom of the protective shell under gravity and are then transported to the collection device through the feed pipe.

[0032] Operation Monitoring and Maintenance: During operation, the heating cylinder temperature is monitored in real time by a temperature controller. If the temperature fluctuation exceeds ±3℃, the system automatically adjusts the power of the electric heating wire. The servo motor speed is monitored by a speed sensor to ensure synchronization between conveying and cutting. If particle size deviation is detected, the servo motor speed is finely adjusted via the controller. After the operation is completed, the heating system and drive motor are turned off, the fixing bolts of the forming head are removed, and the forming head is removed to clean the residual material inside the forming hole. The scraper fixing bolts are loosened, and the scraper is removed for edge sharpening or replacement. When cleaning the inside of the heating cylinder, the servo motor can be started to drive the spiral conveyor roller to rotate, and a special cleaning brush can be used for cleaning. After maintenance, the parts are reassembled for future use.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency deoxidizer granulator, comprising a heating cylinder (1), characterized in that, The heating cylinder (1) is equipped with a spiral conveying roller (4), and one end of the spiral conveying roller (4) is rotatably connected to a fixed frame (6). One end of the heating cylinder (1) is connected to a forming mechanism (7), and the forming mechanism (7) includes a forming head (8), a protective shell (13) connected to one side of the forming head (8), a feeding pipe (15) inserted and fixed to the bottom of the arc-shaped outer wall of the protective shell (13), and a cutting assembly (16) set between the forming head (8) and the protective shell (13). The cutting assembly (16) includes a rotating rod (10) and scrapers (12) evenly distributed at one end of the rotating rod (10).

2. The high-efficiency deoxidizer granulator according to claim 1, characterized in that, The heating cylinder (1) has a feed hopper (2) inserted and fixed at one end of the top of its outer wall, and brackets (3) are fixed on both sides of the bottom of its outer wall.

3. The high-efficiency deoxidizer granulator according to claim 1, characterized in that, A servo motor (5) is installed on the outer wall of one end of the heating cylinder (1), and the output shaft of the servo motor (5) is connected and fixed to the other end of the spiral conveying roller (4). The spiral blades of the spiral conveying roller (4) form a sliding fit with the inner wall of the heating cylinder (1).

4. The high-efficiency deoxidizer granulator according to claim 1, characterized in that, The annular outer wall of the forming head (8) is fixed with symmetrically distributed first mounting blocks (9) on both sides, and the protective shell (13) and the arc-shaped outer wall of the heating cylinder (1) are fixed with second mounting blocks (14) on both sides near the forming head (8). The adjacent first mounting blocks (9) and second mounting blocks (14) are fastened together by bolts and nuts.

5. The high-efficiency deoxidizer granulator according to claim 1, characterized in that, One end of the spiral conveying roller (4) is provided with a hexagonal groove, and a hexagonal column (11) is fixed at the end of the rotating rod (10) near the spiral conveying roller (4), and the hexagonal column (11) and the hexagonal groove form an interlocking fit.

6. The high-efficiency deoxidizer granulator according to claim 1, characterized in that, The rotating rod (10) has equidistantly distributed insertion holes at one end of its rod wall, and the insertion holes and the scraper (12) are connected by insertion. The scraper (12) and the insertion holes are fastened together by bolts.

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